Hilti Aktiengesellschaft

Bernhard Link

Konstantin Baxivanelis

Goran Golubovic

Tobias Drexl

Markus Looser

Andreas Hartig

Thomas Schmalholz

Adrian Steingruber

Henry Chen

Günter Haas

Sean Wang

Torsten Luettich

Eberhard Lang

Matthias Kuemmerle

Matthias Kümmerle

A control method for using a core drilling system is disclosed. In an embodiment the method includes detecting a predetermined drilling situation on the basis of the attainment of a predetermined threshold value for at least one predetermined corresponding drilling parameter and ending the core drilling operation by selecting a reverse-travel mode for removing the drilling tool from the borehole if the advancing device does not reach a predetermined threshold value for a predetermined corresponding distance value in a direction and the core drilling machine does not reach a predetermined threshold value for at least one predetermined corresponding drilling parameter or continuing the core drilling operation by selecting a predetermined operating mode if the advancing device reaches a predetermined threshold value for a predetermined corresponding distance value in a direction and the core drilling machine reaches a predetermined threshold value for at least one predetermined corresponding drilling parameter.

Intelligent core-drilling end detection

A control method for a core drill and a feed device for driving the core drill along a machine holding device, including the method steps: moving the core drill in a first direction; detecting the surface position of a material based on reaching a threshold value for at least one feed device parameter as a first reference value; moving the core drill in a second direction; operating the core drill in a tapping mode; moving the core drill in the first direction; detecting the surface position of a material based on reaching a threshold value for at least one corresponding drilling parameter as a second reference value; activating a water supply; and activating a regulating and control unit for adapting at least one drilling parameter as a function of at least one parameter of the feed device. A feed device for driving a core drill along a machine holding device for the use of the method, a core drill for the use of the method, as well as a core drilling system including a core drill and a feed device for driving the core drill along a machine holding device for the use of the method.

Intelligent surface detection and core drilling start

A control method for the use of a core drilling system including a core drill and a feed device for driving the core drill along a machine holding device. The method includes the steps of determining the end of a core drilling operation on the basis of reaching a predetermined threshold value for at least one corresponding predefined drilling parameter; and of selecting a reversing mode for retracting a drilling tool out of a borehole at a reversing rotational speed which corresponds to a multiple of a predetermined tapping rotational speed of the drilling tool at the beginning of the core drilling operation.

Reversing mode for core drilling systems

A suction module which can be connected to a hand-held power tool, and a hand-held power tool including the suction module, is disclosed. The suction module includes a suction head which can receive a tool of the hand-held power tool that is rotatable around a tool axis and a fan with a fan wheel that is rotatable around a fan axis for suctioning air from the suction head. The suction head is connected to the fan by an intake channel, which in a first section runs along a longitudinal axis of the suction module and in a second section along a vertical axis of the suction module that is fixed transverse to the longitudinal axis. The fan axis runs parallel to a narrow axis, which is aligned transverse to the longitudinal axis and transverse to the vertical axis.

Suction module and hand-held power tool with a suction module

A motor-driven saber saw includes a guide device releasably connectable with the saw housing () in a region of the neck () and including a guide element () for guiding the saber saw () over a workpiece, a connection device () for connecting the guide element () to the housing () and having at least one connection part extending along an axis (A) and connectable with the neck (), with the guide element () being supported on the at least one connection part () for displacement along the axis (A), and with the guide device () further including at least one spring element () located between the at least one connection part () and the guide element ().

Motor-driven saber saw with guide device

A grinding power tool including a motor-driven grinding plate ( ) supported in the housing ( ) and having a plurality of suction openings ( ) connected by a suction channel ( ) provided in the housing ( ) with a vacuum source ( ), and at least one suction relief valve associated with the suction channel ( ) for controlling pressure in the suction channel ( ).

Growing community of inventors

Schwabbruck, Germany

Bernhard Link